[Romanized:]

isanghae maeumi bokjapae (All night long)
deo ganghan keopiga piryohae (Black and strong)
sashil isanghage niga jakku saenggangna (Why)
byeolgeo anin nominde marya
wae wae meonghage inneun geoya
seolma neol joahana
Dadadada nal moreugesseo

jajonshim ganghan naega
byeonhaettago nolliji marayo
machi Express-cheoreom dallyeoga
igeon wiheomhajanayo
gunggeumhaejeo niga nae ape i sarami
jigeume i neukkimeul kkyeoaneun chae
dallyeoga bolkke No excuse
Oh oh ah geupaengeul tago

isanghae maeumi bokjapae (All night long)
deo ganghan keopiga piryohae (Black and strong)
biseutan nugungal bomyeon niga saenggangna (Why)
byeolgeo anin nominde marya

unmyeongiramyeon jom useuweo
seolleimeun injeonghae
Dadadada nal moreugesseo

jajonshim ganghan naega
byeonhaettago nolliji marayo
machi Express-cheoreom dallyeoga
igeon wiheomhajanayo
gunggeumhaejeo niga nae ape i sarami
jigeume i neukkimeul kkyeoaneun chae
dallyeoga bolkke No excuse

maeumi geupaejeo sesangi dallajeo Oh
modeun ge neoro inhaeseo
gijeogeun ullyeosseo eoseo gayo
nan deo ppalli gagil weonhaneungeol

jajonshim ganghan naega
byeonhaettago nolliji marayo
machi Express-cheoreom dallyeoga
igeon wiheomhajanayo
gunggeumhaejeo niga nae ape i sarami
jigeume i neukkimeul kkyeoaneun chae
dallyeoga bolkke No excuse
Oh oh ah geupaengeul tago

[Korean:]

이상해 마음이 복잡해 (All night long)
더 강한 커피가 필요해 (Black and strong)
사실 이상하게 니가 자꾸 생각나 (Why)
별거 아닌 놈인데 말야
왜 왜 멍하게 있는 거야
설마 널 좋아하나
Dadadada 날 모르겠어

자존심 강한 내가
변했다고 놀리지 말아요
마치 Express처럼 달려가
이건 위험하잖아요
궁금해져 니가 내 앞의 이 사람이
지금의 이 느낌을 껴안은 채
달려가 볼게 No excuse
Oh oh ah 급행을 타고

이상해 마음이 복잡해 (All night long)
더 강한 커피가 필요해 (Black and strong)
비슷한 누군갈 보면 니가 생각나 (Why)
별거 아닌 놈인데 말야

운명이라면 좀 우스워
설레임은 인정해
Dadadada 날 모르겠어

자존심 강한 내가
변했다고 놀리지 말아요
마치 Express처럼 달려가
이건 위험하잖아요
궁금해져 니가 내 앞의 이 사람이
지금의 이 느낌을 껴안은 채
달려가 볼게 No excuse

마음이 급해져 세상이 달라져 Oh
모든 게 너로 인해서
기적은 울렸어 어서 가요
난 더 빨리 가길 원하는걸

자존심 강한 내가
변했다고 놀리지 말아요
마치 Express처럼 달려가
이건 위험하잖아요
궁금해져 니가 내 앞의 이 사람이
지금의 이 느낌을 껴안은 채
달려가 볼게 No excuse
Oh oh ah 급행을 타고

[English translation:]

It is weird, my mind is complicated (All night long)
I need stronger coffee (Black and strong)
In fact, as weird it is I keep thinking about you (Why)
I mean, you are not a special guy
Why why am I dazing
No way, do I like you
Dadadada I don't get myself

That I, a self-respecting person, have changed
Don't tease me about that
I am running like express
It's dangerous
I'm getting curious about you, the person in front of me
Holding this feeling right now
I will run, no excuse
Oh oh ah riding on an express

It is weird, my mind is complicated (All night long)
I need stronger coffee (Black and strong)
When I look at someone similar I think about you (Why)
I mean, you are not a special guy

It is a bit funny if it's destiny
I admit the tingle
Dadadada I don't get myself

That I, a self-respecting person, have changed
Don't tease me about that
I am running like express
It's dangerous
I'm getting curious about you, the person in front of me
Holding this feeling right now
I will run, no excuse

I am getting anxious, the world becomes different
All because of you
The train has whistled, let's go
I want to go faster

That I, a self-respecting person, have changed
Don't tease me about that
I am running like express
It's dangerous
I'm getting curious about you, the person in front of me
Holding this feeling right now
I will run, no excuse
Oh oh ah riding on an express